Any reviews of about transport with go port from terminal 8 Disney cruise to MCO airport

[Amydisneyfan]

I booked a post cruise package with goport and I've heard that bus leaves when it's full. I've read some reviews saying that they pick up from terminal 8 Disney cruise terminal last and we might not be able to get on the bus as it will be full.
The ships in Port Canaveral that day are
Disney Fantasy
Marina of the seas
Carnival mardis gras
Carnival Liberty
Carnival Freedom
I just wanting to know will everything be ok or will it be an issue.